STM32CubeMx配置FreeRTOS+LWIP，MCU：STM32F407IG，PHY：LAN8720A，实现多任务，LED灯，按键操作等任务处理，LWIP TCP Sever接收数据然后通过串口接收发送测试

INTRODUCTION lwIP is a small independent implementation of the TCP/IP protocol suite. The focus of the lwIP TCP/IP implementation is to reduce the RAM usage while still having a full scale TCP. This making lwIP suitable for use in embedded systems with tens of kilobytes of free RAM and room for around 40 kilobytes of code ROM. lwIP was originally developed by Adam Dunkels at the Computer and Networks Architectures (CNA) lab at the Swedish Institute of Computer Science (SICS) and is now developed and maintained by a worldwide network of developers. FEATURES * IP (Internet Protocol, IPv4 and IPv6) including packet forwarding over multiple network interfaces * ICMP (Internet Control Message Protocol) for network maintenance and debugging * IGMP (Internet Group Management Protocol) for multicast traffic management * MLD (Multicast listener discovery for IPv6). Aims to be compliant with RFC 2710. No support for MLDv2 * ND (Neighbor discovery and stateless address autoconfiguration for IPv6). Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 (Address autoconfiguration) * DHCP, AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection) and (stateless) DHCPv6 * UDP (User Datagram Protocol) including experimental UDP-lite extensions * TCP (Transmission Control Protocol) with congestion control, RTT estimation fast recovery/fast retransmit and sending SACKs * raw/native API for enhanced performance * Optional Berkeley-like socket API * TLS: optional layered TCP ("altcp") for nearly transparent TLS for any TCP-based protocol (ported to mbedTLS) (see changelog for more info) * PPPoS and PPPoE (Point-to-point protocol over Serial/Ethernet) * DNS (Domain name resolver incl. mDNS) * 6LoWPAN (via IEEE 802.15.4, BLE or ZEP) APPLICATIONS * HTTP server with SSI and CGI (HTTPS via altcp) * SNMPv2c agent with MIB compiler (Simple Network Management Protocol), v3 via altcp * SNTP (Simple network time protocol) * NetBIOS name service responder * MDNS (Multicast DNS) responder * iPerf server implementation * MQTT client (TLS support via altcp) LICENSE lwIP is freely available under a BSD license. DEVELOPMENT lwIP has grown into an excellent TCP/IP stack for embedded devices, and developers using the stack often submit bug fixes, improvements, and additions to the stack to further increase its usefulness. Development of lwIP is hosted on Savannah, a central point for software development, maintenance and distribution. Everyone can help improve lwIP by use of Savannah's interface, Git and the mailing list. A core team of developers will commit changes to the Git source tree. The lwIP TCP/IP stack is maintained in the 'lwip' Git module and contributions (such as platform ports) are in the 'contrib' Git module. See doc/savannah.txt for details on Git server access for users and developers. The current Git trees are web-browsable: http://git.savannah.gnu.org/cgit/lwip.git http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git Submit patches and bugs via the lwIP project page: http://savannah.nongnu.org/projects/lwip/ Continuous integration builds (GCC, clang): https://travis-ci.org/lwip-tcpip/lwip DOCUMENTATION Self documentation of the source code is regularly extracted from the current Git sources and is available from this web page: http://www.nongnu.org/lwip/ Also, there are mailing lists you can subscribe at http://savannah.nongnu.org/mail/?group=lwip plus searchable archives: http://lists.nongnu.org/archive/html/lwip-users/ http://lists.nongnu.org/archive/html/lwip-devel/ There is a wiki about lwIP at http://lwip.wikia.com/wiki/LwIP_Wiki You might get questions answered there, but unfortunately, it is not as well maintained as it should be. lwIP was originally written by Adam Dunkels: http://dunkels.com/adam/ Reading Adam's papers, the files in docs/, browsing the source code documentation and browsing the mailing list archives is a good way to become familiar with the design of lwIP. Adam Dunkels Leon Woestenberg

博客文章<>对应的试验工程。 功能： 从一个干净的STM32F1 SPL库模板上，移植lwip2.1.2. 工程预览：https://lostspeed.blog.csdn.net/article/details/104456252

88E111的252页完整datasheet,里面还有寄存器配置+zynq lwip，还有88E111R的影印版

正点原子探索者开发板STM32F4+FreeRTOS+LWIP移植工程，包含DHCP、UDP、TCP Client、TCP Server。

lwip作者,关于使用lwip设计和实现TCP/IP栈

stm32官方以太网进阶培训资料： 以太网进阶培训Part1_STM32以太网外设 以太网进阶培训Part2_LwIP_介绍 以太网进阶培训Part3_更换以太网PHY 以太网进阶培训Part4_培训实验1 以太网进阶培训Part5_培训实验2

ST官方对STM32使用LWIP的配置说明。 LwIP 在 lwipopts.h 和 opt.h 头文件中提供了多个配置选项。用户可以根据不同的性能需求和不同应用的内存限制对协议栈用 到的内存配置进行调节。Opt.h 头文件中包括协议使能和设置，内存设置，调试选项等等。而 Lwipopts.h 头文件中集合了 opt.h 中一些常常需要改动的部分。一般情况下用户对 lwipopts.h 头文件进行修改就可以了。不管是对 lwipopts.h 还是 opt.h 进行修改，都必须保证是在已经对你所改动的内容足够的了解的情况下进行，所做的改动是正确的，否则有可能导致协议栈 不能正常工作，或者效率低下

此为STM32F107+FreeRtos+LWIP+FATFS的demo工程，SD卡读取方式为SPI。使用的PHY为：DM9161AEP，并编写了一个嵌入式WEBserver。网页放在SD卡上，运行本工程时，注意接线。

压缩包中本文详细讲述了LwIP在无操作系统支持环境下的API函数介绍及编程应用。首先，介绍了RAW API的特点及优缺点，然后逐个介绍了LwIP提供的所有的RAW API函数，最后通过实例的形式介绍了这些API函数具体编程的方法。 包含样例代码： 1、TCP客户端实验 2、UDP服务器实验V 0.01 3、UDP客户端实验 4、WEB服务器实验